diff --git a/go.sum b/go.sum
index 323e099..0fb267a 100644
--- a/go.sum
+++ b/go.sum
@@ -322,6 +322,7 @@
 github.com/gopherjs/gopherjs v0.0.0-20190812055157-5d271430af9f/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
 github.com/gopherjs/gopherjs v0.0.0-20190909024252-1852f3ae2951/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
 github.com/gopherjs/gopherjs v0.0.0-20190910122728-9d188e94fb99/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
+github.com/gopherjs/gopherjs v0.0.0-20190915194858-d3ddacdb130f/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
 github.com/gorilla/context v1.1.1/go.mod h1:kBGZzfjB9CEq2AlWe17Uuf7NDRt0dE0s8S51q0aT7Yg=
 github.com/gorilla/csrf v1.5.1/go.mod h1:HTDW7xFOO1aHddQUmghe9/2zTvg7AYCnRCs7MxTGu/0=
 github.com/gorilla/csrf v1.6.0/go.mod h1:7tSf8kmjNYr7IWDCYhd3U8Ck34iQ/Yw5CJu7bAkHEGI=
@@ -500,6 +501,8 @@
 github.com/prometheus/procfs v0.0.3/go.mod h1:4A/X28fw3Fc593LaREMrKMqOKvUAntwMDaekg4FpcdQ=
 github.com/prometheus/procfs v0.0.4 h1:w8DjqFMJDjuVwdZBQoOozr4MVWOnwF7RcL/7uxBjY78=
 github.com/prometheus/procfs v0.0.4/go.mod h1:4A/X28fw3Fc593LaREMrKMqOKvUAntwMDaekg4FpcdQ=
+github.com/prometheus/procfs v0.0.5 h1:3+auTFlqw+ZaQYJARz6ArODtkaIwtvBTx3N2NehQlL8=
+github.com/prometheus/procfs v0.0.5/go.mod h1:4A/X28fw3Fc593LaREMrKMqOKvUAntwMDaekg4FpcdQ=
 github.com/prometheus/tsdb v0.7.1/go.mod h1:qhTCs0VvXwvX/y3TZrWD7rabWM+ijKTux40TwIPHuXU=
 github.com/prometheus/tsdb v0.8.0/go.mod h1:fSI0j+IUQrDd7+ZtR9WKIGtoYAYAJUKcKhYLG25tN4g=
 github.com/prometheus/tsdb v0.9.1/go.mod h1:oi49uRhEe9dPUTlS3JRZOwJuVi6tmh10QSgwXEyGCt4=
@@ -859,6 +862,8 @@
 go.skia.org/infra v0.0.0-20190912235038-c9498b176f29/go.mod h1:FMm0gIa/n16EvcoAiNrwZO4WAWfC6q5DPUGxFEpzMxc=
 go.skia.org/infra v0.0.0-20190915021605-2cd1d3e375a6 h1:bSfPFtd9p1moUueMSTaciRGBh6qcAV1DMEYyCHRDW6E=
 go.skia.org/infra v0.0.0-20190915021605-2cd1d3e375a6/go.mod h1:NNOATpUJs3+qRnrbquVDUPucSbbUbkOuj88i8bhT+g0=
+go.skia.org/infra v0.0.0-20190915123010-19fff1dbcd61 h1:9eanIAgnYhwd+EDRa0G7z/FV8VzC7vUtpWTWLUxzHto=
+go.skia.org/infra v0.0.0-20190915123010-19fff1dbcd61/go.mod h1:86Ykxt2BlINOCEBF2baYPfreyZyzY5y7v4iGwBwHfD0=
 go.skia.org/skia v0.0.0-20190503181046-70aab823547a h1:+9xKwnzXTkTu+2ZVhffRu0A60Jx/gOETiNlKkzqbnRY=
 go.skia.org/skia v0.0.0-20190503181046-70aab823547a/go.mod h1:oVrxmr1FXbVQ7PeGtZ28Kg5wPvB+bNsnw1n2j5rtfTY=
 go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
@@ -1222,6 +1227,8 @@
 golang.org/x/tools v0.0.0-20190913181337-0240832f5c3d/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20190914235951-31e00f45c22e h1:nOOVVcLC+/3MeovP40q5lCiWmP1Z1DaN8yn8ngU63hw=
 golang.org/x/tools v0.0.0-20190914235951-31e00f45c22e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20190916034716-92af9d69eff2 h1:cvSBP3q8DeS4up5q8ssbGdEtSGiDgRV7HBvOpr3g5RM=
+golang.org/x/tools v0.0.0-20190916034716-92af9d69eff2/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools/gopls v0.1.0/go.mod h1:p8Q0IUu6EEeGxqmoN/g6Et3gReLCGA7PtNRdyOxcWJE=
 golang.org/x/tools/gopls v0.1.1/go.mod h1:RYlHDmWjvTa1HuWNyEKa6/zzI2ums47cfsozmM0466w=
 golang.org/x/tools/gopls v0.1.3/go.mod h1:vrCQzOKxvuiZLjCKSmbbov04oeBQQOb4VQqwYK2PWIY=